The ROCCO pet bottle holder keeps your drinks hot or cold, allowing you to insert a standard pet bottle directly. The holder uses heat-resistant stainless steel. In addition, it employs a vacuum-insulated structure, commonly found in water bottles, to maintain the temperature of your drink. It's convenient as it can also be used as a tumbler by removing the lid. ■ Cooling effect / 9 degrees Celsius or below for 6 hours (At room temperature of around 20 degrees Celsius, with water temperature around 4 degrees Celsius) ■ Heat retention / 38 degrees Celsius or above for 6 hours (At room temperature of around 20 degrees Celsius, with water temperature around 60 degrees Celsius) Specifications: ・Compatible pet bottle size: Up to approximately 500ml ・Capacity when used as a tumbler: 700ml (full) ・Not dishwasher or microwave safe Instant purchase welcome, no message needed. Shipping is usually closed on weekends and holidays. Price negotiations are welcome, please specify your desired amount. Discounts are not guaranteed. For home appliances, machinery, and other products, returns and refunds will be offered if there are any defects.